diff options
Diffstat (limited to 'drivers/mfd/qcom_rpm.c')
| -rw-r--r-- | drivers/mfd/qcom_rpm.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/mfd/qcom_rpm.c b/drivers/mfd/qcom_rpm.c index 2e44323455dd..52fafea06067 100644 --- a/drivers/mfd/qcom_rpm.c +++ b/drivers/mfd/qcom_rpm.c @@ -21,6 +21,7 @@ #include <linux/mfd/qcom_rpm.h> #include <linux/mfd/syscon.h> #include <linux/regmap.h> +#include <linux/clk.h> #include <dt-bindings/mfd/qcom-rpm.h> @@ -48,6 +49,7 @@ struct qcom_rpm { struct regmap *ipc_regmap; unsigned ipc_offset; unsigned ipc_bit; + struct clk *ramclk; struct completion ack; struct mutex lock; @@ -388,11 +390,62 @@ static const struct qcom_rpm_data ipq806x_template = { .ack_sel_size = 7, }; +static const struct qcom_rpm_resource mdm9615_rpm_resource_table[] = { + [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 }, + [QCOM_RPM_SYS_FABRIC_CLK] = { 26, 10, 9, 1 }, + [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 27, 11, 11, 1 }, + [QCOM_RPM_SFPB_CLK] = { 28, 12, 12, 1 }, + [QCOM_RPM_CFPB_CLK] = { 29, 13, 13, 1 }, + [QCOM_RPM_EBI1_CLK] = { 30, 14, 16, 1 }, + [QCOM_RPM_APPS_FABRIC_HALT] = { 31, 15, 22, 2 }, + [QCOM_RPM_APPS_FABRIC_MODE] = { 33, 16, 23, 3 }, + [QCOM_RPM_APPS_FABRIC_IOCTL] = { 36, 17, 24, 1 }, + [QCOM_RPM_APPS_FABRIC_ARB] = { 37, 18, 25, 27 }, + [QCOM_RPM_PM8018_SMPS1] = { 64, 19, 30, 2 }, + [QCOM_RPM_PM8018_SMPS2] = { 66, 21, 31, 2 }, + [QCOM_RPM_PM8018_SMPS3] = { 68, 23, 32, 2 }, + [QCOM_RPM_PM8018_SMPS4] = { 70, 25, 33, 2 }, + [QCOM_RPM_PM8018_SMPS5] = { 72, 27, 34, 2 }, + [QCOM_RPM_PM8018_LDO1] = { 74, 29, 35, 2 }, + [QCOM_RPM_PM8018_LDO2] = { 76, 31, 36, 2 }, + [QCOM_RPM_PM8018_LDO3] = { 78, 33, 37, 2 }, + [QCOM_RPM_PM8018_LDO4] = { 80, 35, 38, 2 }, + [QCOM_RPM_PM8018_LDO5] = { 82, 37, 39, 2 }, + [QCOM_RPM_PM8018_LDO6] = { 84, 39, 40, 2 }, + [QCOM_RPM_PM8018_LDO7] = { 86, 41, 41, 2 }, + [QCOM_RPM_PM8018_LDO8] = { 88, 43, 42, 2 }, + [QCOM_RPM_PM8018_LDO9] = { 90, 45, 43, 2 }, + [QCOM_RPM_PM8018_LDO10] = { 92, 47, 44, 2 }, + [QCOM_RPM_PM8018_LDO11] = { 94, 49, 45, 2 }, + [QCOM_RPM_PM8018_LDO12] = { 96, 51, 46, 2 }, + [QCOM_RPM_PM8018_LDO13] = { 98, 53, 47, 2 }, + [QCOM_RPM_PM8018_LDO14] = { 100, 55, 48, 2 }, + [QCOM_RPM_PM8018_LVS1] = { 102, 57, 49, 1 }, + [QCOM_RPM_PM8018_NCP] = { 103, 58, 80, 2 }, + [QCOM_RPM_CXO_BUFFERS] = { 105, 60, 81, 1 }, + [QCOM_RPM_USB_OTG_SWITCH] = { 106, 61, 82, 1 }, + [QCOM_RPM_HDMI_SWITCH] = { 107, 62, 83, 1 }, + [QCOM_RPM_VOLTAGE_CORNER] = { 109, 64, 87, 1 }, +}; + +static const struct qcom_rpm_data mdm9615_template = { + .version = 3, + .resource_table = mdm9615_rpm_resource_table, + .n_resources = ARRAY_SIZE(mdm9615_rpm_resource_table), + .req_ctx_off = 3, + .req_sel_off = 11, + .ack_ctx_off = 15, + .ack_sel_off = 23, + .req_sel_size = 4, + .ack_sel_size = 7, +}; + static const struct of_device_id qcom_rpm_of_match[] = { { .compatible = "qcom,rpm-apq8064", .data = &apq8064_template }, { .compatible = "qcom,rpm-msm8660", .data = &msm8660_template }, { .compatible = "qcom,rpm-msm8960", .data = &msm8960_template }, { .compatible = "qcom,rpm-ipq8064", .data = &ipq806x_template }, + { .compatible = "qcom,rpm-mdm9615", .data = &mdm9615_template }, { } }; MODULE_DEVICE_TABLE(of, qcom_rpm_of_match); @@ -501,6 +554,20 @@ static int qcom_rpm_probe(struct platform_device *pdev) mutex_init(&rpm->lock); init_completion(&rpm->ack); + /* Enable message RAM clock */ + rpm->ramclk = devm_clk_get(&pdev->dev, "ram"); + if (IS_ERR(rpm->ramclk)) { + ret = PTR_ERR(rpm->ramclk); + if (ret == -EPROBE_DEFER) + return ret; + /* + * Fall through in all other cases, as the clock is + * optional. (Does not exist on all platforms.) + */ + rpm->ramclk = NULL; + } + clk_prepare_enable(rpm->ramclk); /* Accepts NULL */ + irq_ack = platform_get_irq_byname(pdev, "ack"); if (irq_ack < 0) { dev_err(&pdev->dev, "required ack interrupt missing\n"); @@ -538,6 +605,7 @@ static int qcom_rpm_probe(struct platform_device *pdev) } rpm->ipc_regmap = syscon_node_to_regmap(syscon_np); + of_node_put(syscon_np); if (IS_ERR(rpm->ipc_regmap)) return PTR_ERR(rpm->ipc_regmap); @@ -620,7 +688,11 @@ static int qcom_rpm_probe(struct platform_device *pdev) static int qcom_rpm_remove(struct platform_device *pdev) { + struct qcom_rpm *rpm = dev_get_drvdata(&pdev->dev); + of_platform_depopulate(&pdev->dev); + clk_disable_unprepare(rpm->ramclk); + return 0; } |